The experimental results are presented of implementation of a built-up laser-based diagnostic system at a test rig for investigations of the flame tube heads of aircraft gas turbine engines, both existing and being under development. At this test rig the processes of liquid fuel atomization and mixing with air by flame tube heads of model combustion chambers equipped with newly-developed atomizers, and of combustion of the fuel–air mixture formed in the flow have been studied. These studies enable development and optimization of advanced low-emission engines satisfying the established environmental requirements for the levels of polluting species in the exhaust gases. By using the particle shadow velocimetry technique with a pair of 10 μ s delayed 5 ns laser pulses the transverse spatial distributions of average kerosene droplet dimensions, the axial components of their average velocity, and of the average volume flux of the fuel have been measured in the mixture flow axia...

中文翻译：

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在模型燃烧室内对煤油的雾化和燃烧进行激光诊断

给出了在测试台上实施基于激光器的组合式诊断系统的实验结果，该系统用于调查飞机燃气涡轮发动机的火焰管头（现有的和正在开发的）。在该试验台上，研究了装有新型雾化器的模型燃烧室的火焰管头将液体燃料雾化和与空气混合的过程，以及燃烧过程中形成的燃料-空气混合物的燃烧过程。这些研究使得能够开发和优化先进的低排放发动机，从而满足已建立的环境要求，以解决废气中污染物的水平。通过使用带有10 s s延迟5 ns激光脉冲对的颗粒阴影测速技术，平均煤油液滴尺寸的横向空间分布，